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Showing 1-30 of 115 results
AOAC Method 2011.11: UHPLC/MS/MS Analysis of Vitamin D2 and Vitamin D3 on Titan™ C18
Separation of Ergocalciferol (D2), analytical standard; Cholecalciferol (D3), analytical standard
Fast Extraction and Low Level Detection of Chloramphenicol in Shrimp
A highly selective and sensitive analytical method was developed for chloramphenicol using a QuEChERS type sample preparation approach and LC-MS/MS detection.
Fast and Accurate LC-MS Analysis of Vitamin D Metabolites Using Ascentis® Express F5 HPLC Columns
Fast and Accurate LC-MS Analysis of Vitamin D Metabolites, Using Ascentis® Express F5 HPLC Columns from Supelco®
Determination of Lactose in Dairy Products Using TLC-MS
Straightforward HPTLC-MS analysis of lactose in dairy products (milk or yoghurt) using only protein crash, centrifugation and dilution as sample preparation.
Online Solid Phase Extraction and LC-MS Analysis of Thyroid Hormones in Human Serum
Thyroid hormones play critical roles in the regulation of biological processes, such as growth, metabolism, protein synthesis, and brain development. For a clinical laboratory, fast and reliable measurements of total hormone levels are important for the diagnosis and monitoring of...
LC/MS Analysis of Nucleotides SeQuant ZIC-cHILIC – Effect of pH
ZIC-cHILIC is a densely bonded zwitterionic stationary phase with phosphorylcholine functional groups covalently attached to silica.
New GC-MS Method for Mycotoxin Analysis
An article regarding A New GC-MS Method for Mycotoxin Analysis Using 13C-marked Mycotoxin Derivatives from Sigma-Aldrich.com
GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 (20 m x 0.18 mm I.D., 0.18 µm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
GC Analysis of Polynuclear Aromatic Hydrocarbons (PAHs) in Salmon on SPB®-608 (20 m x 0.18 mm I.D., 0.18 µm) after QuEChERS Cleanup using Supel™ QuE Z-Sep, Fast GC Analysis
LC/MS Analysis of Nucleotides on SeQuant ZIC-cHILIC
HILIC separation is an alternative that permits sensitive MS detection and without the use of ion-pair reagents.
Accurate Biological Testing for Amphetamine and Methamphetamine Abuse Using Chiral HPLC and MS Detection
Optimized sample prep and chiral chromatography methods for the LC/MS analysis of these drug enantiomers in urine
Extraction and Analysis of PAHs in Olive Oil using Molecularly Imprinted Polymer SPE and GC-MS
Extraction and Analysis of PAHs in Olive Oil using Molecularly Imprinted Polymer SPE and GC-MS
Analysis of Human Plasma Lipids Using sub-2 μM C18 UHPLC Column with MS Detection
A comprehensive platform for lipidomics studies by LC/MS, applied without any modification in conditions and suitable to both ESI and APCI interfaces.
HPLC Analysis of Carotene Compounds on Ascentis® RP-Amide
Protocol for HPLC Analysis of Carotene Compounds on Ascentis® RP-Amide
Analysis of a Bispecific Monoclonal Antibody Using Size Exclusion Chromatography and Mass Spectrometry
Bispecific antibodies are a new class of biotherapeutics where one therapeutic agent can target two different antigens. This application note demonstrates a new size exclusion chromatographic method for characterizing these new biotherapeutics by mass spectrometry.
LC/MS/MS Analysis of Epinephrine, Metanephrine and Metabolites on Ascentis® Express OH5
LC/MS/MS Analysis of Epinephrine, Metanephrine and Metabolites on Ascentis® Express OH5
LC/MS/MS Analysis of Drugs in Plasma on Ascentis® Express C18 after Extraction using SPME LC Tips
LC/MS/MS Analysis of Drugs in Plasma on Ascentis® Express C18 after Extraction using SPME LC Tips
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
Extraction and Analysis of Agricultural Pesticides from Oranges Using the “QuEChERS” Method
GC Analysis of PBDE Flame-Retardant Compounds
GC Analysis of PBDE Flame-Retardant Compounds
LC/MS (TOF) Analysis of Illicit Bath Salts in Urine on Ascentis® Express HILIC After Solid Phase Extraction (SPE) Using Supel™-Select SCX
Separation of 3,4-Methylenedioxypyrovalerone HCl (MDPV) solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; Buphedrone hydrochloride solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; 3-Fluoromethcathinone hydrochloride solution...
Developing a Quantitative SPME Method
Developing a Quantitative SPME Method
Qualitative Thin Layer Chromatography Analysis Ginkgo
Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets
LC/MS Analysis of Opioid Glucuronide Metabolites in Urine on Ascentis® Express F5 after Solid Phase Extraction (SPE) using Supel™-Select HLB
LC/MS Analysis of Opioid Glucuronide Metabolites in Urine on Ascentis® Express F5 after Solid Phase Extraction (SPE) using Supel™-Select HLB
Reversed-Phase HPLC Analysis of Insulin Variants and Analogs by UV and Mass Spectral Detection
Insulin is an approximately 6000 Da peptide hormone used to regulate the glucose concentration in blood. There are several different forms of insulin that are both natural and recombinant; the recombinant forms have been engineered to improve pharmacokinetic properties. A...
Biological Testing for Amphetamine and Methamphetamine Abuse
In this study, optimized methods are presented for sample preparation and chiral chromatography for the LC/MS analysis of amphetamine and methamphetamine enantiomers in urine.
HPLC Analysis of Benzalkonium Chloride in Commercial Disinfecting Wipes on Ascentis® Express HILIC
Technical article on HPLC Analysis of Benzalkonium Chloride in Commercial Disinfecting Wipes on Ascentis® Express HILIC
Quantifying Picogram Concentrations of Aflatoxin M1 in Liquid Milk Using SPE Cleanup and LC/MS Analysis
Fast method for the cleanup, analysis, and quantification of aflatoxin M1 in milk samples to EU regulatory standards (0.025 μg/kg).
Purification of Serum Peptides for MALDI Mass Spectrometry with Amicon® Ultra Centrifugal Filters
Biomarkers play an essential role in the drug discovery and development process.
Mass Spectrometry Metabolite Library Protocol
MSMLS™ (Mass Spectrometry Metabolite Library of Standards) is a collection of high quality small biochemical molecules that span a broad range of primary metabolism. These are high purity (>95%) compounds supplied in an economical, ready-to-use format.
US EPA Method 8270 (Appendix IX): GC Analysis of Semivolatiles on Equity®-5 (30 m x 0.25 mm I.D., 0.50 μm)
Chlorobenzilate; 4-Aminobiphenyl; 2-Fluorobiphenyl; N-Nitrosopyrrolidine; 1,2,4,5-Tetrachlorobenzene; 3-Methylcholanthrene; Phenacetin
Determination of Quinine in Tonic Water and Caffeine in Coffee and Cola Drinks Using TLC-MS
HPTLC–MS analysis of quinine in tonic water and caffeine in coffee and cola drinks. Tonic and cola drinks decarbonized through ultrasonication, and coffee extracted through PTFE filter.
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